Wow. What would I say if I met Bono? It's so odd, I haven't really thought about that much even though I've wanted to meet him for almost three years now. I wouldn't really talk AT him, I'd talk WITH him. I think THAT would be the huge difference.
I'd want to know about Bono. It's amazing to me how few people really want to know. I wouldn't do it because no one else has but because I am truly interested in the guy.
So, I'd probably ask him about himself, what's going on in his life at that moment, how he feels, is he having a good day, what are his plans for the day. That sort of thing.
I know I may sound like a very odd fan to you, but I don't care.